Overview This in-hull or pocket mounted transducer uses narrow beams at low/high frequencies to display depth and temperature data to your Garmin Marine Network via your sonar, such as the GSD 26.Designed to allow both traditional and Spread Spectrum scanning, this 2 kW barewire, plastic transducer has a maximum depth of 8,000 ft; an operating frequency of 38 to 75 kHz and 130 to 210 kHz; and a beamwidth of 10×19 degrees. The in-hull mounts on a 0-25° deadrise angle; the pocket mount is installation dependent.Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.¹In-hull not recommended for cored-hull vessels